A major incident has occurred as a school bus carrying up to 70 passengers crashed in Northern Ireland, according to paramedics. The Northern Ireland Ambulance Service (NIAS) announced a major incident after the crash in County Down. Emergency vehicles were dispatched to the scene in Carrowdore, and the public was advised to contact 999 only for life-threatening situations while responders addressed the accident. More details are expected to follow on this developing news story.